( 4°3 ) 
hence falling with fuch Increafe of Weight 
on the Part, it is fo much more forcible, 
penetrates deeper, and carries its Efficacy 
farther. 3. When cold Water is ufed, the 
increafed Weight and Cold will make the 
greater Contraction of the Mufcles and Vef- 
fels of that Part the greater the Contrac- 
tion, the ftronger the Attrition of the con- 
tained Fluids, and the deeper will the Ef- 
feCt reach. 4. This Preffure and Contrac- 
tion by cold Water, not being like Bath- 
ing, reaching the whole Surface of the Body, 
but only that Part affeCted, the Refiftance 
from the other Parts not prefled nor con- 
tracted, will be lefler ; hence the Contrac- 
traCtion of Fibres, Veflels, Nerves and Muf- 
cles ; and the expulfive Force thereupon 
will be much greater, the flzy, thick, or 
ftagnating Humours mu ft be more forcibly 
propelled, and the Diameters of the Veflels 
Shortened ; fo that they aCt with greater 
Power over their contained Fluids, the Fi- 
bres will be fhortened, braced and ftrength- 
ened. 5. In Pumping with mineral Waters, 
the more aCtive, penetrating, volatile, and 
medicinal Principles are hereby darted into 
the Skin, whofe Pores are much larger 
than thefe minute fpirituous Particles, 
D d 2 whereby 
